Edward i-ieyde



(No Model.) 2 Sheets-Sheet l.

E. HEYDE.

BBNDING ROLLS.

` Patented Feb. 9, 1892.

' llillulnlllflli 1IMIJllllllllIIIIIIIIIIIIHIINII Illlll umumumur UNITED STATES, PATENT OFFICE.

EDIVARD IIEYDE, OF EASTSAGINAV, MICHIGAN, ASSIGNOR'TO WIOKES BROTHERS, OF SAME PLACE.

BENDlNG-ROLL.

SPECIFICATION forming part of Letters Patent No. 468,659, dated February 9, 1892.

Application filed August 27, 1891. Serial No. 403,885. (No model.)

To all whom t may concern,.-

Be it known that I, EDWARD I-IEYDE, a citizen of the United States, residing; at East Saginaw', in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Bending-Rolls, of which the following is -a specification, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in bending-rolls of that class designed for rolling sheet metal into curved plates, such as boiler-plates, dsc.

The invention consistsin the peculiar construction of the mechanism designed for raising and lowering the upper roll for the purpose of changing the curvature at which the plate will be rolled, all as more fully hereinafter described.

In the drawings, Figure lis a side elevation of a set of bending-rolls embodying my invention, partly in section. Fig. 2 is an enlarged top plan of the engine and frictiongearing. Fig. 3 is a cross-section beside the friction-gearing.

Ais the main supporting-frame, upon which are secured the standards B, provided with suitable bearings, in which are jou-rnaled the upper rolls C and the lower rolls D. The standard B is apertured centrally to receive the shafts E, one for each standard, these shafts carrying at their upper ends the boxes or bearings F for the upper roll, which bearings are entirely support-ed upon these shafts, which are guided in vertical bearings F in the standards. The lower end of the shaft is screw-threaded and engages with a female thread in the horizontal bevel gear-wheel G, which rests between the bearing F and a bracket E.

H is a shaft extending horizontally beneath the rolls and carrying at each end the beveled pinions I, which mesh with the bevel gear-wheels G upon the vertical shafts.

It is evident that if motion is imparted to the shaft H the gear-wheels will be turned upon the shafts E and will raise and lower these shafts, and with them the upper roll will be raised orlowered, according to the direction iii which the gear-wheels are turned.

My present invention consists in the peculiar construction of the mechanism for imparting motion to these vertical shafts.

J are the engines (preferably two) connected with the crank-shaft K, which forms the 55 main drive-shaft for the rolls, motion being communicated to the rolls by any suitable driving-gear. I also preferably employ a clutch at L, whereby this main shaft may be connected or disconnected at will from the 6o drivegearing. Upon this shaft I secure a friction-pulley M, and below this pulley, upon the shaft N, I secure a friction-pulley O. (More plainly shown in Figs. 2 and 3.) The outer end of the shaft N is journaled eccentrically in a rotary bearing P, to which bearing is secured a lever Q for rotating the same. This lever is provided with a suitable counterweight R to normally hold the faces of the friction-pulleys out of engagement, and also 7o with a foot-lever I extending through the platform beside the machine, by means of which the operator may depress the lever, rock the bearing, and bring the faces of the two pulleys into engagement to impart motion to the shaft N and through suitable intermediate gearing to the shaft H for the purpose of raising and lowering the upper roll. A reverse movement is imparted to this raising and lowering shaft by reversing the engines. 8o

Thus, when the machine is in operation rolling a plateof metal, if the operator in putting his gage upon the sheet linds the curvature is not the proper one, he can, by simply putting his foot upon the standard P throw the friction-pulley O into contact with the pulley on the drive-shaft and raise and lower the upper roll to increase or diminish the curvature, the drive-shaft being given motion in the proper direction.

By using the frictional gearing to transmit the power from the drive-shaft to the adjusting mechanism for the upper roll there is no danger of applying sufficient power when the roll is drawn downward to increase the curvature to break the roll. This has been a serious source of trouble in other mechanism that has been devised for such adjustment.

What I claim as my invention is The combination, with a series of bendingroo rolls, one of which is adjustable, of means for the depression of the lever on the eccentric adjusting said roll, a shaft for actuating said bearing, substantially as described. 1Q means, a friction-disk mounted on said shaft, In testimony whereof I affix my signature in an eccentric bearing for the shaft, a lever on presence of two Witnesses.

5 the bearing, a foot-lever on said other lever, EDVARD HEYDE.

a Weight on the eccentric lever, and a friction- XVitnesses: disk on the driving-shaft of the rolls arranged ALFRED HUDSON, to be engaged with the said other disk upon JNO. XV. HOAG. 

